CN216052547U - Display substrate and display panel - Google Patents

Abstract

The display substrate comprises a pixel electrode layer and a plurality of signal line layers, wherein the pixel electrode layer and the plurality of signal line layers are arranged at intervals along the thickness direction of the display substrate, the display substrate further comprises a transparent touch electrode layer insulated from the pixel electrode layer, the transparent touch electrode layer comprises a plurality of transparent touch electrodes, the transparent touch electrode layer and the plurality of signal line layers are arranged on the same layer, and the transparent touch electrodes are used for forming self-capacitance. The present disclosure also provides a display panel.

Description

Display substrate and display panel

Technical Field

The disclosure relates to the field of display technologies, and in particular relates to a display substrate and a display panel.

Background

Electrophoretic Displays (EPDs) are a type of paper, reflective Displays, and may also be referred to as electronic paper. The working principle is that black electrophoretic particles and white electrophoretic particles are subjected to electrophoresis under the action of voltage to form black and white colors. The EPD has the characteristics of low power consumption, high reflection in sunlight and the like, has potential application value in the fields of commercial super price tags, storage material management and the like, and is gradually called as a feasible display scheme in the field of outdoor display.

In some related technologies, touch control is implemented in the EPD module by using a plug-in or infrared touch control component, which increases the thickness and cost of the EPD module. The related art cannot realize touch and display integration in the EPD box.

SUMMERY OF THE UTILITY MODEL

The embodiment of the disclosure provides a display substrate and a display panel.

In a first aspect, an embodiment of the present disclosure provides a display substrate, where the display substrate includes a pixel electrode layer and multiple signal line layers, the pixel electrode layer and the multiple signal line layers are arranged at intervals in a thickness direction of the display substrate, the display substrate further includes a transparent touch electrode layer insulated from the pixel electrode layer, the transparent touch electrode layer includes multiple transparent touch electrodes, the transparent touch electrode layer and one of the multiple signal line layers are arranged on the same layer, and the transparent touch electrodes are used to form a self-capacitance.

In some embodiments, the transparent touch electrode layer is divided into a plurality of touch units, each of the touch units includes a plurality of the transparent touch electrodes; the transparent touch control electrodes in the same touch control unit are electrically connected; the transparent touch electrodes in different touch units are arranged independently.

In some embodiments, the transparent touch electrode layer further comprises a plurality of first connection electrodes, and the display substrate further comprises a plurality of second connection electrodes;

in the same touch unit, any pair of transparent touch electrodes adjacent to each other in a first direction are electrically connected through corresponding first connecting electrodes, any pair of transparent touch electrodes adjacent to each other in a second direction are electrically connected through corresponding second connecting electrodes through via holes, the first direction is consistent with the extending direction of a signal line in a signal line layer on the same layer as the transparent touch electrodes, and the second direction is consistent with the extending direction of a signal line in a signal line layer on a different layer from the transparent touch electrodes; the first direction and the second direction intersect.

In some embodiments, the plurality of signal line layers includes a gate electrode layer and a source drain electrode layer.

In some embodiments, the display substrate further includes a plurality of touch signal lines for providing electrical signals to the touch units.

In some embodiments, in each of the touch units, at least one of the transparent touch electrodes includes a touch electrode body and an extension portion, the extension portion is integrally formed with the touch electrode body, the extension portion protrudes from the touch electrode body, and the extension portion is electrically connected to a corresponding touch signal line of the touch unit.

In some embodiments, the transparent touch electrode includes a first electrode portion extending in a first direction and a second electrode portion extending in a second direction, the first electrode portion and the second electrode portion being integrally formed, a width of the first electrode portion in the second direction being smaller than a length of the second electrode portion in the second direction, and a width of the second electrode portion in the first direction being smaller than a length of the first electrode portion in the first direction; the first direction is consistent with the extending direction of the signal wire in the signal wire layer on the same layer as the transparent touch electrode, and the second direction is consistent with the extending direction of the signal wire in the signal wire layer on the different layer from the transparent touch electrode; the first direction and the second direction intersect.

In some embodiments, in the same touch unit, the first electrode portions of any pair of the transparent touch electrodes adjacent to each other in the first direction are electrically connected, and the second electrode portions of any pair of the transparent touch electrodes adjacent to each other in the second direction are electrically connected.

In some embodiments, the pixel electrode layer is divided into a plurality of pixel units, each of the pixel units including at least one pixel electrode; the plurality of transparent touch electrodes and the plurality of pixel units are arranged in a one-to-one correspondence manner.

In a second aspect, an embodiment of the present disclosure provides a display panel, including a display substrate, a pair of substrates disposed in a pair with the display substrate, and a display medium layer disposed between the display substrate and the pair of substrates, wherein a common electrode layer is disposed on the pair of substrates, and the display substrate is any one of the display substrates described in the first aspect of the present disclosure; the common electrode layer is electrically connected with the transparent touch electrode layer.

In some embodiments, the display medium layer comprises electrophoretic particles.

Drawings

The accompanying drawings are included to provide a further understanding of the embodiments of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the principles of the disclosure and not to limit the disclosure. The above and other features and advantages will become more apparent to those skilled in the art by describing in detail exemplary embodiments thereof with reference to the attached drawings, in which:

FIG. 1 is a schematic structural view of an EPD display panel according to some related art;

FIG. 2 is a schematic cross-sectional view of a display substrate according to an embodiment of the disclosure;

FIG. 3 is a schematic cross-sectional view of another display substrate in an embodiment of the disclosure;

FIG. 4 is a schematic plan view of a display substrate according to an embodiment of the disclosure;

FIG. 5 is a schematic plan view of another display substrate in an embodiment of the disclosure;

FIG. 6 is a schematic diagram illustrating connection between a touch signal line and a touch unit according to an embodiment of the present disclosure;

FIG. 7 is a schematic diagram of a transparent touch electrode according to an embodiment of the disclosure;

FIG. 8 is a schematic diagram of a transparent touch electrode according to an embodiment of the disclosure;

FIG. 9 is a schematic diagram of a signal line layer in an embodiment of the present disclosure;

fig. 10 is a schematic cross-sectional view of a display panel in an embodiment of the disclosure.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present disclosure, the following describes the display substrate and the display panel provided in the present disclosure in detail with reference to the accompanying drawings.

Example embodiments will be described more fully hereinafter with reference to the accompanying drawings, but which may be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

Embodiments of the present disclosure and features of embodiments may be combined with each other without conflict.

As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

Embodiments described herein may be described with reference to plan and/or cross-sectional views in light of idealized schematic illustrations of the disclosure. Accordingly, the example illustrations can be modified in accordance with manufacturing techniques and/or tolerances. Accordingly, the embodiments are not limited to the embodiments shown in the drawings, but include modifications of configurations formed based on a manufacturing process. Thus, the regions illustrated in the figures have schematic properties, and the shapes of the regions shown in the figures illustrate specific shapes of regions of elements, but are not intended to be limiting.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present disclosure, and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Fig. 1 is a schematic structural diagram of some related art EPD display panels. As shown in fig. 1, a gate electrode layer 301, a gate insulating layer 500, an active layer 600, a source/drain electrode layer 302, a protective layer (PVX)700, a pixel electrode layer 200, an electrophoretic particle layer 800, and a common electrode layer 900 are stacked in this order on a substrate 400. The pixel electrode layer 200 is electrically connected to the source/drain electrode layer 302, and a storage capacitor is formed between the gate electrode layer 301 and the source/drain electrode 302. The electrophoretic particle layer 800 is located at a light emitting side of the EPD display panel. In the EPD structure shown In fig. 1, a Full In Cell (FIC) touch cannot be realized due to a shielding effect of the common electrode layer 900 located at the viewing side.

In view of this, in a first aspect, referring to fig. 2, fig. 3, fig. 4, and fig. 5, an embodiment of the present disclosure provides a display substrate, where the display substrate includes a pixel electrode layer 2 and a multilayer signal line layer 3, the pixel electrode layer 2 and the multilayer signal line layer 3 are disposed at intervals along a thickness direction of the display substrate, the display substrate further includes a transparent touch electrode layer 1 insulated from the pixel electrode layer 2, the transparent touch electrode layer 1 includes a plurality of transparent touch electrodes 11, the transparent touch electrode layer 1 is disposed on the same layer as one of the multilayer signal line layers 3, and the transparent touch electrode 11 is used to form a self-capacitance.

The embodiment of the present disclosure does not specifically limit the multilayer signal line layer 3. For example, as shown in fig. 2 and 3, the signal line layer 3 includes a gate electrode layer 31 and a source/drain electrode layer 32. In some embodiments, as shown in fig. 2 and 4, the transparent touch electrode layer 1 and the gate electrode layer 31 are disposed in the same layer. In some embodiments, as shown in fig. 3 and fig. 5, the transparent touch electrode layer 1 and the source/drain electrode layer 32 are disposed on the same layer. In the embodiment of the present disclosure, fig. 2, fig. 3, fig. 4, and fig. 5 are only exemplary illustrations of the arrangement of the transparent touch electrode layer 1, the pixel electrode layer 2, and the signal line layer 3, and in the display substrate provided in the embodiment of the present disclosure, the arrangement of the transparent touch electrode layer 1, the pixel electrode layer 2, and the signal line layer 3 is not limited to the cases shown in fig. 2, fig. 3, fig. 4, and fig. 5.

In the embodiment of the present disclosure, a side of the transparent touch electrode layer 1 departing from the pixel electrode layer 2 is a light emitting side of the display substrate. When the display substrate is touched from the light-emitting side of the display substrate, the transparent touch electrode 11 can form a self-capacitance with a finger of an operator, so that self-capacitance touch is realized, in-box integration of display and touch is realized, and the display substrate is thinned.

The self-capacitance means that the transparent touch electrode layer has the ability to store charges. The self-capacitance touch control is that a transparent touch control electrode in a display substrate is connected with a touch control driving integrated circuit, when a finger touches the display substrate, the capacitance value of the transparent touch control electrode at a touch point fluctuates, and the touch control driving integrated circuit can determine the position of the touch point by detecting the fluctuation of the capacitance value, so that the touch control function is realized. In the embodiment of the present disclosure, the transparent touch electrode 11 and one of the signal line layers 3 are disposed on the same layer, so that the thickness of the display substrate can be reduced, and the manufacturing cost is not increased too much when the touch function is implemented.

In some embodiments, the transparent touch electrode of the transparent touch electrode layer 1 is made of Indium Tin Oxide (ITO), and the pixel electrode of the pixel electrode layer 2 is also made of ITO.

In some embodiments, referring to fig. 4 and 5, the transparent touch electrode layer 1 is divided into a plurality of touch units, each of which includes a plurality of transparent touch electrodes 11; a plurality of transparent touch electrodes 11 in the same touch unit are electrically connected; the transparent touch electrodes 11 in different touch units are arranged independently.

In some embodiments, the plurality of touch units are arranged in a matrix, and the plurality of touch units are independent of each other. In some embodiments, the display substrate further includes touch signal lines TX, each touch unit is connected to a touch signal line, when the touch unit is driven, the touch signal lines are used to provide touch signals to the touch units line by line (i.e., the touch units are scanned line by line), and the position of the touch point can be determined by detecting a signal change on each touch signal line.

The size of the touch unit is not particularly limited in the embodiments of the present disclosure. In some embodiments, the size of the touch unit is set according to the size of the display panel. For example, the larger the size of the display panel, the larger the size of the touch unit. In some embodiments, the size of the touch unit ranges from 3mm × 3mm to 7mm × 7 mm.

In some embodiments, the Pixel electrode layer 2 is divided into a plurality of Pixel cells (pixels), each of which includes at least one Pixel electrode 21; the plurality of transparent touch electrodes 11 are arranged in one-to-one correspondence with the plurality of pixel units. In some embodiments, each touch unit covers 15 × 15 to 60 × 60 pixel units.

In the embodiment of the present disclosure, a direction consistent with an extending direction of a signal line in the signal line layer 3 on the same layer as the transparent touch electrode 11 is a first direction, and a direction consistent with an extending direction of a signal line in the signal line layer 3 on a different layer from the transparent touch electrode 11 is a second direction; the first direction and the second direction intersect.

In some embodiments, the transparent touch electrode layer 1 further includes a plurality of first connection electrodes 12, and the display substrate further includes a plurality of second connection electrodes 13.

In the same touch unit, any pair of transparent touch electrodes 11 adjacent to each other in the first direction are electrically connected through corresponding first connection electrodes 12, and any pair of transparent touch electrodes 11 adjacent to each other in the second direction are electrically connected through corresponding second connection electrodes 13 by vias.

In some embodiments, referring to fig. 2 and 3, multilayer signal line layer 3 includes a gate electrode layer 31 and a source drain electrode layer 32.

In the embodiment of the present disclosure, the signal line in the gate electrode layer 31 includes a plurality of gate lines, and the signal line in the source drain electrode layer 32 includes a plurality of data lines. As shown in fig. 4 and 5, a plurality of gate lines and a plurality of data lines define a plurality of pixel units. Wherein the gate line extends along a transverse direction; the data line extends in a longitudinal direction.

In some embodiments, referring to fig. 2 and 4, the transparent touch electrode layer 1 and the gate electrode layer 31 are disposed in the same layer.

Accordingly, a direction in which the gate line extends (a transverse direction in fig. 4) is a first direction, and a direction in which the data line extends (a longitudinal direction in fig. 4) is a second direction.

Accordingly, in some embodiments, referring to fig. 4, in the same touch unit, any pair of transparent touch electrodes 11 adjacent in the transverse direction is electrically connected through the corresponding first connection electrode 12, and any pair of transparent touch electrodes 11 adjacent in the longitudinal direction is electrically connected through the corresponding second connection electrode 13 by a via hole.

In some embodiments, the first connecting electrode 12 and the transparent touch electrode layer 1 are disposed at the same layer, and the second connecting electrode 13 and the pixel electrode layer 2 are disposed at the same layer, so that the thickness of the display substrate can be reduced, and the display substrate can be made thinner.

In some embodiments, referring to fig. 3 and 5, the transparent touch electrode layer 1 and the source/drain electrode layer 32 are disposed on the same layer.

Accordingly, a direction in which the data line extends (a longitudinal direction in fig. 5) is a first direction, and a direction in which the gate line extends (a lateral direction in fig. 5) is a second direction.

Accordingly, in some embodiments, referring to fig. 5, in the same touch unit, any pair of transparent touch electrodes 11 adjacent in the transverse direction is electrically connected through a via hole by a corresponding second connection electrode 13, and any pair of transparent touch electrodes 11 adjacent in the longitudinal direction is electrically connected by a corresponding fourth connection electrode 12.

In the embodiment of the present disclosure, the touch signal line may be disposed on the same layer as the gate line, or on the same layer as the data line. The embodiment of the present disclosure is not particularly limited in this regard.

In some embodiments, when the transparent touch electrode layer 1 and the source/drain electrode layer 32 are disposed on the same layer, the touch signal lines and the data lines are disposed on the same layer, and the touch signal lines are parallel to the data lines and extend along the second direction, so that the touch signal lines and the touch units are conveniently and electrically connected by direct lap joint. In some embodiments, one touch signal line is disposed corresponding to each data line. In some embodiments, one touch signal line is disposed every several data lines. In some embodiments, the touch signal line may be electrically connected to at least one transparent touch electrode 11 in the touch unit electrically connected thereto.

In some embodiments, when the transparent touch electrode layer 1 and the gate electrode layer 31 are disposed on the same layer, the touch signal lines and the gate lines are disposed on the same layer, and the touch signal lines are parallel to the gate lines and extend along the first direction, so that the touch signal lines and the touch units are electrically connected by direct lap joint. In some embodiments, one touch signal line is disposed corresponding to each gate line. In some embodiments, one touch signal line is disposed every several gate lines. In some embodiments, the touch signal line may be electrically connected to at least one transparent touch electrode 11 in the touch unit electrically connected thereto.

Fig. 6 is a schematic view of the touch signal lines and the gate electrode layer 31 disposed on the same layer. In fig. 6, a plurality of electrode blocks 101 (solid-line rectangular blocks in the drawing) are included, each electrode block 101 corresponds to at least one pixel unit defined by gate lines and data lines, and 4 × 4 electrode blocks 101 constitute one touch unit 100 (dotted-line rectangular blocks in the drawing). The touch signal lines TX1 to TX12 are electrically connected to the corresponding touch units 100, respectively.

Correspondingly, in some embodiments, the display substrate further includes a plurality of touch signal lines, and each of the touch signal lines is electrically connected to at least one of the touch units.

The embodiment of the disclosure does not particularly limit how the touch signal lines correspond to the touch units. In some embodiments, the touch signal lines and the gate lines are disposed at the same layer, the transparent touch electrode layer and the gate lines are disposed at the same layer, the extending direction of the gate lines is a first direction, and the extending direction of the data lines is a second direction. The touch signal lines are arranged along the second direction, and the touch units and the touch signal lines arranged along the second direction sequentially correspond according to the sequence of the first direction and the second direction. In some embodiments, the touch signal lines and the data lines are disposed at the same layer, the transparent touch electrode layer and the data lines are disposed at the same layer, the extending direction of the data lines is a first direction, and the extending direction of the gate lines is a second direction. The touch signal lines are arranged along the second direction, and the touch units and the touch signal lines arranged along the second direction sequentially correspond according to the sequence of the first direction and the second direction.

In some embodiments, when the touch signal line is electrically connected to the touch unit, the touch signal line is electrically connected to at least one transparent touch electrode 11 in the touch unit. In some embodiments, an extension portion is disposed in the transparent touch electrode 11 electrically connected to the touch signal line for overlapping with the touch signal line.

Accordingly, in some embodiments, referring to fig. 7, in each of the touch units, at least one transparent touch electrode 11 includes a touch electrode body and an extension portion 14, the extension portion 14 is integrally formed with the touch electrode body, the extension portion 14 protrudes from the touch electrode body, and the extension portion 14 is electrically connected to a corresponding touch signal line TX of the touch unit. It should be noted that fig. 7 is only a schematic illustration that when the transparent touch electrode 11 and the source/drain electrode layer 32 are disposed at the same layer, and the touch signal line TX and the Data line SD _ Data are disposed at the same layer, the transparent touch electrode 11 and the touch signal line TX are overlapped through the extension portion 14. When the transparent touch electrode 11 and the Gate electrode layer 31 are disposed on the same layer, and the touch signal line TX and the Gate line Gate are disposed on the same layer, the transparent touch electrode 11 and the touch signal line TX are overlapped by the extending portion 14.

The shape of the transparent touch electrode 11 is not particularly limited in the embodiment of the present disclosure. In some embodiments, the transparent touch electrode 11 is rectangular. In some embodiments, the transparent touch electrode 11 has a polygonal shape. In some embodiments, as shown in fig. 4, 5 and 8, the transparent touch electrode 11 is shaped like a "T".

Accordingly, in some embodiments, referring to fig. 4, 5, and 8, the transparent touch electrode 11 includes a first electrode portion 111 and a second electrode portion 112, the first electrode portion 111 extends along a first direction, the second electrode portion 112 extends along a second direction, the first electrode portion 111 and the second electrode portion 112 are integrally formed, a width of the first electrode portion 111 in the second direction is smaller than a length of the second electrode portion 112 in the second direction, and a width of the second electrode portion 112 in the first direction is smaller than a length of the first electrode portion 111 in the first direction; the first direction is the same as the extending direction of the signal lines in the signal line layer on the same layer as the transparent touch electrode 11, and the second direction is the same as the extending direction of the signal lines in the signal line layer on a different layer from the transparent touch electrode 11.

Accordingly, in some embodiments, referring to fig. 4, 5, and 8, in the same touch unit, the first electrode portions 111 of any pair of transparent touch electrodes 11 adjacent to each other in the first direction are electrically connected, and the second electrode portions 112 of any pair of transparent touch electrodes 11 adjacent to each other in the second direction are electrically connected.

It should be noted that the shape of the transparent touch electrode 11 in fig. 8 is only an exemplary illustration of the transparent touch electrode 11, and the shape of the transparent touch electrode 11 is not limited to the case shown in fig. 8.

In some embodiments, the aperture ratio of the display substrate is improved by thinning the routing lines and reducing the size of the thin film transistor. In some embodiments, the aperture ratio of the display substrate is 85% to 90%.

As shown in fig. 9, the touch signal lines TX and the Gate lines Gate are disposed on the same layer in (a) and (b), and the middle Gate electrode is flattened compared with the middle Gate electrode in (a), so that the aperture ratio is improved. (c) And (d) the middle touch signal line TX and the Data line SD _ Data are arranged on the same layer, and the middle gate electrode in (d) adopts a flat design relative to the middle gate electrode in (c), so that the aperture opening ratio is improved.

In some embodiments, as shown in fig. 2 and 3, the display substrate further includes a substrate base plate 4, a gate insulating layer 5, an active layer 6, and a protective layer 7. In some embodiments, as shown in fig. 2 and fig. 3, in each pixel unit, the display substrate further includes a thin film transistor, the thin film transistor includes a gate electrode, a gate insulating layer, an active layer, a source electrode, and a drain electrode, the protective layer 7 covers the thin film transistor, the pixel electrode 21 is disposed on a side of the protective layer 7 facing away from the thin film transistor, and the pixel electrode 21 is electrically connected to the drain electrode of the thin film transistor through a via hole.

In a second aspect, referring to fig. 10, an embodiment of the present disclosure provides a display panel, including a display substrate, a pair of substrates arranged to be aligned with the display substrate, and a display medium layer 8 arranged between the display substrate and the pair of substrates, wherein a common electrode layer 9 is arranged on the pair of substrates, and the display substrate is any one of the display substrates described in the first aspect of the embodiment of the present disclosure; the common electrode layer 9 is electrically connected to the transparent touch electrode layer 1.

It should be noted that, in the embodiment of the present disclosure, the display substrate includes a plurality of signal line layers 3, and the transparent touch electrode layer 1 may be disposed on the same layer as any one of the plurality of signal line layers 3. Fig. 10 schematically shows a case where the transparent touch electrode layer 1 and the gate electrode layer 31 are provided in the same layer in the display substrate. For example, in some embodiments, the transparent touch electrode layer 1 in the display substrate may also be disposed in the same layer as the source/drain electrode layer 32.

The display medium layer 9 is not particularly limited in the embodiment of the present disclosure. In some embodiments, the display medium layer 9 comprises electrophoretic particles.

In some embodiments, the display medium layer 9 includes electronic ink microcapsules arranged between the common electrode layer 9 and the pixel electrode layer 2 in the display panel, and the electronic ink microcapsules are composed of electrophoretic particles, electrophoretic base liquid, and capsule walls.

In the embodiment of the present disclosure, a side of the transparent touch electrode layer 1 departing from the pixel electrode layer 2 in the display panel is a light emitting side of the display panel. When the display panel is touched from the light-emitting side of the display panel, the transparent touch electrode 11 can form a self-capacitance, so that self-capacitance touch is realized, in-box integration of display and touch is further realized, and the display substrate is thinned.

In the embodiment of the present disclosure, the transparent touch electrode 11 in the display panel and one of the signal line layers 3 are disposed on the same layer, so that the thickness of the display panel can be reduced, and the manufacturing cost is not increased too much when the touch function is implemented.

The steps for manufacturing the display substrate provided by the embodiment of the present disclosure include:

providing a substrate base plate;

forming a pixel electrode layer and a plurality of signal line layers which are arranged at intervals along the thickness direction of the display substrate on the substrate;

and forming a transparent touch electrode layer, wherein the transparent touch electrode layer comprises a plurality of transparent touch electrodes, the transparent touch electrode layer and one layer of the plurality of signal line layers are arranged on the same layer, the touch electrode layer is insulated from the pixel electrode layer, and the transparent touch electrodes are used for forming self-capacitance.

It should be noted that, in the embodiment of the disclosure, how to form the transparent touch electrode layer and the signal line layer disposed on the same layer is not particularly limited.

In some embodiments, forming the transparent touch electrode layer and the signal line layer disposed in the same layer includes:

forming a transparent touch electrode material layer;

forming a signal line material layer;

and forming a transparent touch electrode layer on the transparent touch electrode material layer through a one-step composition process, and forming a signal line layer which is the same as the transparent touch electrode layer on the signal line material layer.

In the disclosed embodiments, the patterning process may include sputtering, photoresist coating, exposure, etching, and the like.

In the embodiment of the disclosure, the transparent touch electrode layer and the signal line layer arranged on the same layer can be formed by two times of deposition and one time of mask process, the process for manufacturing the display substrate is simpler, the generation yield of the display substrate is favorably improved, and the cost of the display substrate is reduced.

In some embodiments, forming the transparent touch electrode layer and the signal line layer disposed in the same layer includes:

forming a transparent touch electrode material layer, and forming a transparent touch electrode layer on the transparent touch electrode material layer;

and forming a signal line material layer, and forming a signal line layer on the same layer as the transparent touch electrode layer on the signal line material layer.

In the embodiment of the disclosure, the process for manufacturing the display substrate is simpler, which is beneficial to improving the yield of the display substrate and reducing the cost of the display substrate.

Example embodiments have been disclosed herein, and although specific terms are employed, they are used and should be interpreted in a generic and descriptive sense only and not for purposes of limitation. In some instances, features, characteristics and/or elements described in connection with a particular embodiment may be used alone or in combination with features, characteristics and/or elements described in connection with other embodiments, unless expressly stated otherwise, as would be apparent to one skilled in the art. Accordingly, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the disclosure as set forth in the appended claims.

Claims (12)

1. The display substrate is characterized by further comprising a transparent touch electrode layer insulated from the pixel electrode layer, the transparent touch electrode layer comprises a plurality of transparent touch electrodes, the transparent touch electrode layer and one of the plurality of signal line layers are arranged on the same layer, and the transparent touch electrodes are used for forming self-capacitance.

2. The display substrate according to claim 1, wherein the transparent touch electrode layer is divided into a plurality of touch units, each of the touch units comprising a plurality of the transparent touch electrodes; the transparent touch control electrodes in the same touch control unit are electrically connected; the transparent touch electrodes in different touch units are arranged independently.

3. The display substrate according to claim 2, wherein the transparent touch electrode layer further comprises a plurality of first connection electrodes, and the display substrate further comprises a plurality of second connection electrodes;

in the same touch unit, any pair of transparent touch electrodes adjacent to each other in a first direction are electrically connected through corresponding first connecting electrodes, any pair of transparent touch electrodes adjacent to each other in a second direction are electrically connected through corresponding second connecting electrodes through via holes, the first direction is consistent with the extending direction of a signal line in a signal line layer on the same layer as the transparent touch electrodes, and the second direction is consistent with the extending direction of a signal line in a signal line layer on a different layer from the transparent touch electrodes; the first direction and the second direction intersect.

4. The display substrate according to any one of claims 1 to 3, wherein the plurality of signal line layers comprise a gate electrode layer and a source drain electrode layer.

5. The display substrate according to claim 2 or 3, wherein the display substrate further comprises a plurality of touch signal lines for providing electrical signals to the touch units.

6. The display substrate according to claim 5, wherein at least one of the transparent touch electrodes in each of the touch units comprises a touch electrode body and an extension portion, the extension portion is integrally formed with the touch electrode body, the extension portion protrudes from the touch electrode body, and the extension portion is electrically connected to the touch signal line corresponding to the touch unit.

7. The display substrate according to claim 2, wherein the transparent touch electrode comprises a first electrode portion extending in a first direction and a second electrode portion extending in a second direction, the first electrode portion and the second electrode portion being integrally formed, a width of the first electrode portion in the second direction is smaller than a length of the second electrode portion in the second direction, and a width of the second electrode portion in the first direction is smaller than a length of the first electrode portion in the first direction; the first direction is consistent with the extending direction of the signal wire in the signal wire layer on the same layer as the transparent touch electrode, and the second direction is consistent with the extending direction of the signal wire in the signal wire layer on the different layer from the transparent touch electrode; the first direction and the second direction intersect.

8. The display substrate according to claim 3, wherein the transparent touch electrode comprises a first electrode portion extending in the first direction and a second electrode portion extending in the second direction, the first electrode portion and the second electrode portion being integrally formed, wherein a width of the first electrode portion in the second direction is smaller than a length of the second electrode portion in the second direction, and wherein a width of the second electrode portion in the first direction is smaller than a length of the first electrode portion in the first direction.

9. The display substrate according to claim 7 or 8, wherein in the same touch unit, first electrode portions of any pair of the transparent touch electrodes adjacent to each other in the first direction are electrically connected, and second electrode portions of any pair of the transparent touch electrodes adjacent to each other in the second direction are electrically connected.

10. The display substrate according to claim 2 or 3, wherein the pixel electrode layer is divided into a plurality of pixel units, each of the pixel units including at least one pixel electrode; the plurality of transparent touch electrodes and the plurality of pixel units are arranged in a one-to-one correspondence manner.

11. A display panel, comprising a display substrate, a pair of box substrates arranged to be aligned with the display substrate, and a display medium layer arranged between the display substrate and the pair of box substrates, wherein a common electrode layer is arranged on the pair of box substrates, and the display substrate is the display substrate according to any one of claims 1 to 10; the common electrode layer is electrically connected with the transparent touch electrode layer.

12. The display panel of claim 11, wherein the display medium layer comprises electrophoretic particles.

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